package main

import (
	"math/rand"
	"time"
	"fmt"
)

func main() {
	fmt.Println(time.Now())
	fmt.Println(time.Now().Unix())
	fmt.Println(time.Now().UnixNano())
	rand.Seed(time.Now().UnixNano())
	for i := 0; i < 5; i++ {
		fmt.Println(rand.Intn(100))
	}
}
